Incubator



(No Model.) 2 Sheets-Sheet 1.

B. W. S. CLARK.

INGUBATOR.

No. 424,599. Patented Apr. 1, 1890.

I HIIHH ll momma. 2 Sheets-.Sheet 2. B. W. S. CLARK.

IN'GUBATOR.

Patented Apr. 1, 1890.

WITNESSES INVENTOR UNITED STATES PAT NT OFFICE.

BYRON IV. S. CLARK, OF LOSANGELES, CALIFORNIA.

INCUBATOR.

SPECIFICATION forming part of Letters Patent No. 424,599, dated April 1,1890.

Application filed June 13, 1889. Serial No. 314,181. (No model.)

To all whom it may concern:

Be it known that I, BYRON \V. S. CLARK, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in Incubators, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming part of thisspecification.

Figure l of the drawings represents a perspective view of my incubatorWit-h the door open and one tray partly withdrawn. Fig. 2 is a centralvertical section taken at line X X of Fig. 1. Fig. 3is a viewof thebottom, showing holes E and sliding doors II, by means of which thecirculation is regulated.

The body of my improved incubator is rectangular in form,with a circularextension F at one side, in which is located. a cylindrical water-tankA, which communicates with the waterdeservoir B C, which extends overthe top and along the sides of the central chamber D.

Between the water-receptacles A B O and the casing F F, inclosing theincubator, there is a space i j 713 for air circulation, to which air isadmitted through a circular opening on in the casing around the lamp G.This air-space for the circulation of air in the incubator surrounds thewater-space or reservoir and tank, which surround the entire structure,excepting the bottom and the ends, which are provided with doors. Thedoors have glass inserted in them to permit of the inspection of eggs inthe trays M, and athermometer which is kept within the chamber D toindicate the degree of heat therein. The fine P, in which the lamp G isplaced at the bottom of tank A, extends up through the center of tank Aand centrally through the upper strata of water in the reservoir 13, andthence at right angles up through the casing F. The pipe R is open attop and bottom and communicates with the upper strata or body of waterinthe reservoir B.

There are two water-pipes S extending across the bottom of chamber D,under the egg-trays M, and near the ends of the incubator, which pipescommunicate with the portions of the reservoir denoted by letter C, topermit the water to circulate and pass all around the top and sides ofthe incubator, and thereby the water throughout the entire reservoir andtank is kept at an equal uniform temperature, and the air, which isadmitted at m, is also keptat a uniform temperature, receiving its heatfrom the water which it surrounds.

The sliding door V over an. opening in the casing above the tank Aadmits of access to the tank, and may be adjusted to allow sufficientegress of air to keep up a degree of ventilation.

Holes E are provided in the bottom of the casing F to permit the coolerair which descends to escape. Perforated sliding doors H are arranged toclose the holes. In Fig. 3 the doors are shown in position to leave freepassage through the holes E, the perforations in the doors coincidingwith the holes E. The circulation of air maybe iegulated by means ofthese sliding doors. The partitions X X at the sides of chamber D do notextend to the top of the chamber, and serve to cause the air to rise inclose proximity to warm waterof the divisions C C of the water-reservoirand enter chamber D over the egg trays, as indicated by the arrows l and2.

To provide a proper degree of moisture in chamber D, pans containingwater are placed under the egg-trays, which have open wire cloth bottomsto permit free passage of the warm and moist air to circulate among theeggs which are placed in the trays.

The arrows in the air-spaces around. the water-tank and reservoir denotethe circulation of air, which is warmed by contact with thewater-reservoir and tank A, and as the air-spaces ext-end down to thebottom of the casing at both sides of the incubator it is warmed by theheated water and arisesbetween partitions X X and the portions O O ofthe reservoir and enters chamber D, and

is allowed as it is replaced by warmer air to find egress through theholes through the bottom of the casing, as above mentioned.

Having described my invention, I claim and 5 desire to secure by LettersPatent The Water-tank and reservoir-With the central flue P for thepassage of the heat from the lamp and the surrounding air-spaces i j isbetween said tank and reservoir, and the casing F F, in combination withpartitions IO X X and chamber D, as and for the purpose described. BYRONV. S. CLARK.

\Vitnesses:

M. O. GALER,

H. P. K. PEoK.

